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Home » Road Data » Road Type - Definition

5/31/2013 1:32:07 PM

admin
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We often get asked what defines a different road type, well the answer is below: -

Motorway
A multi-carriageway public road connecting important cities, always numbered and with no addresses.
A Road
A public road, classified as an A road by the DfT, connecting areas of regional importance, always numbered, sometimes named, often with addresses.
B Road
A public road, classified as a B road by the DfT, connecting places of local significance, always numbered, sometimes named, often with addresses.
Minor Road
A public road without a DfT classification of motorway, A or B that connects the roads defined below to B and higher classification roads*.
In urban areas usually named, often with addresses. In rural areas sometimes named and sometimes with addresses.
Local Street
A public road that provides access to land and/or houses, usually named with addresses. Generally not intended for through traffic*.
Alley
A road without access restrictions that provides alternate/secondary vehicular access to land or houses. They may be named but are usually without addresses. They are usually not intended for through traffic, though they may be accessible from more than one location.
Typical examples are those that run behind rows of houses.
Currently, coverage is limited to roads formerly described as ‘Private’ in previous Ordnance Survey road products but reclassified following ground visits.
Private road – publicly accessible
A privately-maintained road or a road within a property boundary where publicly access by the public is considered usual for at least some part of the day. For example, a road within a hospital, sports centre or school.
They may extend through a site if more than one entrance exists. If only one entrance exists they are normally created to extend to the principal building within a single site or the boundary of the last property served for features accessing more than one addressed or otherwise identifiable property*.
They may be captured outside this definition if required to provide restricted connectivity to a track or path.
Private road – restricted access
A privately maintained road or a road within a property boundary where access by the public is restricted by physical (for example, gate) or administrative (for example, sign) means or is not considered usual. For example, roads within a military base, an oil refinery, within a private residential garden or leading to two private properties*.
Such roads are captured only where they exceed 100 m in length or serve more than one addressed or otherwise identifiably separate property.
Roads are normally created to extend to the principal building within a single site or the boundary of the last property served for roads serving multiple properties. Two exceptions to this exist:
where a track or path exists that the road is connected to, the road must be extended to that pointwhere roads within a private residential garden extend for more than 100 m from the property boundary
Pedestrianised street
Roads that have been altered for use principally by pedestrians but may street provide some access for certain types of vehicle*.
Details of specific routing access restrictions will be within the RRI theme.

Source: http://www.ordnancesurvey.co.uk/oswebsite/support/products/os-mastermap/itn-layer-technical-specification/attribute-definitions-and-values.html
edited by admin on 5/31/2013
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